"Poles are extremely sensitive about the way Nazi German-run death camps in occupied Poland during the war are described," the Journal added. "Millions of Polish Jews and Catholics perished during the conflict and large numbers were murdered by German authorities in the camps."

NPR has also made a mistake in referring to such death camps. As ombudsman Edward Schumacher-Matos reported last October, newscaster Paul Brown spoke of a "Nazi-occupied Polish death camp" in a report that month. A better wording would have been "Nazi death camps in Poland," suggested NPR executive producer of Newscasts, Robert Garcia.